java解析json到安卓中活动中的对象

Question

我有一个返回JSON的php脚本，如下所示：

[{"title":"Clothes are selling well","location":"Los Angeles","imageUrl":"xxx","pubDate":"2014-07-26 13:58:08","id":"1"},{"title":"Polo  this summer","location":"UAE","imageUrl":"YYY","pubDate":"2014-07-26 18:05:26","id":"2"},{"title":"Samsung: New tablets","location":"Kuwait","imageUrl":"IIIIII","pubDate":"2014-07-26 18:05:26","id":"3"}]

我需要在我的活动类中解析这个json。有什么建议吗？我将创建具有以下属性的对象：

1. 头衔
2. 位置
3. 图像URL
4. 出版日期

提前谢谢

Answer 1

根据这些属性创建类。 下载谷歌的Gson 类示例名称：Objects 例如：

String json = "....";
Gson gson = new Gson();
Objects obj = (Objects) gson.fromJson(json,Objects.class);

希望能有帮助

Answer 2

在Android中解析JSON非常容易。这就是如何解析当前的JSON-

   //Assuming json holds your JSON as String
   try {
        //Create a JSON array 
        JSONArray jsonArray = new JSONArray(json);

        //Iterate through all the JSON objects
        for(int i=0;i<jsonArray.length();i++){

            //Get ith object
            JSONObject item = jsonArray.getJSONObject(i);

            //Get required data from the object
            String title = (String) item.get("title");
            String location = (String) item.get("location");
            String imageUrl = (String) item.get("imageUrl");
            String pubDate = (String) item.get("pubDate");

            //You can now do anything with the data.
            Log.i("TITLE", title);
            Log.i("LOC", location);
            Log.i("IMG_URL", imageUrl);
            Log.i("P_DATE", pubDate);                           

        }                       

    } catch (JSONException e) {
        Log.i("EXP", "Ooi..! There's an exception.");
        e.printStackTrace();
    }

如果您是解析JSON的新手，有很多简单的教程，比如-

• tutorialspoint
• androidhive

Answer 3

Jackson library帮助您自动将数据绑定到JSON或从JSON绑定数据

public class Object {
  @JsonProperty
  private  String title;
  @JsonProperty
  private String location;
  @JsonProperty
  private String url;

  @JsonPropery
  private String pubDate;
  @JsonProperty
  private int id;

  //Add set and get method.
}

为了解析字符串，需要使用ObjectMapper对象

ObjectMapper mapper = new ObjectMapper(); // can reuse, share globally
Object obj = mapper.readValue(/*your string*/, Object.class);

否则，您可以使用Android JSONTokener轻松地手动完成